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Finding the Fourth Proportional to 198,313.88, 297,153.68 and 178,171.60

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Solution

The fourth proportional to 198,313.88, 297,153.68 and 178,171.60 is: 266,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,313.88 : 297,153.68 = 178,171.60 : x
  2. Step 2: Convert to fraction form
    198,313.88/297,153.68 = 178,171.60/x
  3. Step 3: Cross multiply
    198,313.88x = 297,153.68 × 178,171.60
  4. Step 4: Simplify right side
    198,313.88x = 52,944,346,611.49
  5. Step 5: Solve for x
    x = 52,944,346,611.49/198,313.88
  6. Step 6: Final answer
    x = 266,972.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.